4-8
Box PC 820 / PC FI45 V2, Manual
A5E00051531-03
DP Port (9 -Pin Sub D Socket Connector)
The port pinout conforms to PROFIBUS requirements
1
5
6
9
Figure 4-1 DP Port
Pin no.
Signal
designation
Description Input/
Output
Pin 1 n.c. not assigned –
Pin 2 n.c. not assigned –
Pin 3 LTG_B Signal line B of direct key module Input/output
Pin 4 RTS TTL output signal of direct key module. Signal ‘1’
is active when direct access key module transfers
data.
Output
Pin 5 M5EXT M5EXT ground of 5V isolated power supply
The current load of an external consumer connec-
ted between P5EXT and M5EXT must not exceed
a max. of 90mA.
Output
Pin 6 P5EXT P5EXT supply (+5V) of isolated 5V power supply.
The current load of an external consumer connec-
ted between P5EXT and M5EXT must not exceed
a max. of 90mA.
Output
Pin 7 n.c. not assigned –
Pin 8 LTG_A Signal line A of direct module Input/output
Pin 9 n.c. not assigned
Direct Key Module (Optional with FI45)
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